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3-[2-(2-Oxocyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine → 3-[2-(2-Methylenecyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine

HRID 276949
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인쇄 미리보기

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HRID 276949 반응식
[CH3:1]C(C)([O-])C.[K+].O=[C:8]1[CH2:13][CH2:12][CH2:11][CH2:10][CH:9]1[N:14]1[C:19](=[O:20])[CH:18]=[CH:17][C:16]([C:21]2[C:22]([C:30]3[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=3)=[N:23][N:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=23)=[N:15]1>[Br-].C[P+](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1.O1CCCC1>[CH2:1]=[C:8]1[CH2:13][CH2:12][CH2:11][CH2:10][CH:9]1[N:14]1[C:19](=[O:20])[CH:18]=[CH:17][C:16]([C:21]2[C:22]([C:30]3[CH:31]=[CH:32][CH:33]=[CH:34][CH:35]=3)=[N:23][N:24]3[CH:29]=[CH:28][CH:27]=[CH:26][C:25]=23)=[N:15]1
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참가 물질

5

반응물 2

HCID 110690413-[2-(2-Oxocyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridineHCID 23665647Potassium tert-butoxide

생성물 1

HCID 226292583-[2-(2-Methylenecyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine수율 37.4%

시약·촉매·용매 2

HCID 74505Methyltriphenyliphosphonium bromide촉매
HCID 8028
Tetrahydrofuran
용매
2회

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온도
2.5 °C

실험 절차

To a stirred suspension of methyltriphenylphosphonium bromide (1.39 g) in tetrahydrofuran (30 ml) was added potassium tert-butoxide (437 mg) under nitrogen atmosphere at 0° C. After the mixture was stirred at 0-5° C. for 1.5 hours, to this was added a solution of 3-[2-(2-oxocyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine (500 mg) in tetrahydrofuran (10 ml). The mixture was stirred at room temperature for 4 hours and stood at room temperature overnight. Insoluble materials were filtered off and the filtrate was evaporated in vacuo. The residue was dissolved in dichloromethane (30 ml). The dichloromethane solution was washed with brine (20 ml), dried over anhydrous sodium sulfate, and evaporated in vacuo. The crude material was purified by column chromatography on silica gel using dichloromethane as an eluant to give colorless crystals of 3-[2-(2-methylenecyclohexyl)-3-oxo-2,3-dihydropyridazin-6-yl]-2-phenylpyrazolo[1,5-a]pyridine (186 mg).

후처리

  1. stirringThe mixture was stirred at room temperature for 4 hours
  2. waitstood at room temperature overnight
  3. filtrationInsoluble materials were filtered off
  4. customthe filtrate was evaporated in vacuo
  5. dissolutionThe residue was dissolved in dichloromethane (30 ml)
  6. washThe dichloromethane solution was washed with brine (20 ml)
  7. dry with materialdried over anhydrous sodium sulfate
  8. customevaporated in vacuo
  9. customThe crude material was purified by column chromatography on silica gel

출처 및 근거

ORD 기록
ord-2cc7c4ee1eda4e368bb71ce80562078b
출처 데이터셋
uspto-grants-2002_03
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US06355640B1

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